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(No Model.) 2 SheetsSheet 1..

D. P. BARRETT. WINDMIYLL.

No. 357,652. Patented Feb. 15,1881

INVENTUE.

(No Model.) 2 Sheets-Sheet 2.

D. P. BARRETT.

WINDMILL.

No; 357,662. Patented Feb. 15, 1887.

I'VNVENTUR,

n. PEIERS Phuwuthognpmr. Wauhington. m.

- ply-hose and float.

,UNITED STATES PATENT QFFICE.

DANIEL P. BARRETT, OF OAKLAND, CALIFORNIA.

WINDM ILL.

SPECIFICATION forming part of Letters Patent No. 357,652, dated February 15, 1887. Application filed May 5, I886. Serial No. 201,233. (No model.)

To aZZ whom it may concern:

Be it known that I, DANIEL P. BARRETT; a citizen of the United States, residing at Oak land, in the county of Alameda. and State of California, have invented a new and useful- Windmill for Raising Water, of which the following is a specification.

My invention relates to improvements in windmills for raising water; and it consists in a device for securing a long and equal stroke involving several revolutions of the mill without varyingtthe leverage applied to operating the pump; also, in securing safe anti-friction bearings which will not require oiling. It will be understood by reference to the accompanying drawings.

Figure l is a front elevation showing the attachment of the gearing and a portion of the pump-rod and water-pipe broken off. Fig. 2 is an enlarged view of the guide-frame K, showing the guide-slots P and the yoke D, the pinion G, the pump-rod E, the swivel O, and the pump-tube F. Fig. 3 is a top plan view showing the same construction as that shown in Fig. 1. Fig. 4 is a side elevation with a portion of the tank broken out to show the sup- Fig. 5 is a perspective view of the revolving bed-frame and the upright supporting and guide frame, with a section of the revolving bed-frame broken out to show the anti-friction balls forming the main bearing of the windmill.

A represents the wind-wheel; B, the main,

shaft; 0, the pinion; D, the rack-gear; E, the pump-rod; F, the pump-tube; G, the elastic supply-tube; H, the float; I, the water-tank; J, the windmill-frame. K is the guide-frame, and L the bearings for the main shaft; M, the anti-friction balls; N, the upper bearing frame or bed; 0, the swivel-joint; P, the guide-slots; Q, the guide-pin; R, the lower bed-frame.

The following is the construction of the same: I employ any well-known mode of construction for the framework J and the mill watertank and the wind-wheel.

The supporting and guide frame K is generally composed of plank; but other material may be employed. The rack D is generally cast in a single piece of iron, and the pumprod E is firmly attached to the same. The upper end of the rack D is connected by a guide-pin to operate in the for the purpose of holding with the pinion O.

I form the upper or revolving bearing-frame, N, and the lower bed-frame ofmetal castings, and employ steel balls M or anti-friction rolls, thus securing a-great reduction of the friction in the turn-table and avoiding the necessity of using oil or other lubricating material.

I employ steel rolls or steel balls for all the journal-bearings I fit all the grooves and journal-bearings smoothly and in good mechanical style, and employ no lubricating material. In my construction I employ the antifriction roll-bearings of the well-known mode of construction, except that I surround the journal of the main shaft by rolls of about five inches in length for a mill which employs'a wind-wheel of about fourteen feet in diameter. I connect the pump-tube with the water-tank near the bottom; but I employ the flexible tube G with the float H to rise and carry up the pipe to discharge the water at the surface in the tank and save the expenditure of power required to elevate the water to the top of the tank when it is only partially filled. I employ either a double-acting or a single-acting pump; but when an equal strain is desired to be maintained throughout the up-and-down stroke of the pump the double-acting or combined liftand-force pump is employed.

The following is the operation of my improved windmill: As the wind-wheel A is rethe same in gear volved by the wind, revolving the pinion O,

the leverage upon the gear of the yoke D and pump-rod Eis equal at all parts of the stroke; consequently, instead of the varied effect of the common crank and connecting-rod usually employed, in my construction the amount of force required in starting is constant and equal to the mean powerapplied. For instance, the pinion employed being four inches in diameter to the pitch-line, theleverage is buttwo inches from the fulcrum or center of the shaft, or equal to the radius of the pinion O, and the proportion of the pinion C to the yoke D being such that several turns of the wind-wheel A and of the main shaft B are required to complete a long stroke, which allows the running of the mill by a very light wind where but a slow motion of the windmill results, and the ordiguide-groove P,

nary crank would not be carried over the middle of the stroke, where the greatest strain comes. By this arrangement, when the wind is blowing hard the mill is quickly revolved and the water is rapidly raised, and when the wind is blowing lightly, a slow motion resulting, water is raised in proportion, which, although amounting to but little in a single day, aggregates a considerable during the periods of light winds, when the ordinary windmill is still for the want of sufficient wind force to carry the ordinary crank over at the middle of the strokes.

Having thus described my invention, whatI claim, and desire to secure by Letters Patent, 1s

1. In windmills for raising water, theipinion 0 upon the main shaft B, and the rackyokeD and pump-rod E to gear with the same, in combination with the guideframe K, with guide-grooves P, for the purpose of operating the pump-rod E, constructed and operated substantially as and for the purposes set forth.

2. In combination with the pump-tube E, the flexible tube G and float H, for the pur- :5 pose of preventing the excessive back-pressure upon the pump when the tank is only partially filled, constructed and operated su bstantially as and for the purposes set forth.

DANIEL P. BARRETT.

Witnesses:

ROBERT MoELRoY, J. H. REDsToNE. 

